Changing tappets on a 8v

[Ben Lessani]

Cheers for all the help Managed to get the cam out and new tappets in. Replaced camshaft and bolted it down (that was harder than I expected). Belt is back on and all lined up, however I seem to have a lot of slack on the right side of the belt. I can not seem to get the tensioner pulley across to the right anymore and the belt if very tight from the crank to the tensioner. Any ideas? Could the belt have stretched at all?

The tensioner can only apply tension to one side of the belt loop. You need to fit the belt, then turn the crank and camshaft ever so slightly away from each other to pull tension on the front side of the belt, then the tensioner applies tension on the back.

[Daston]

gotcha cheers will give that a bash tomorrow night.

[Daston]

Well just got in and its much better there is about 1cm slack on the front side is this too much? Tried looking in the Haynes manual but it dosnt say (or if it does I am blind).

Cheers

Dave

[Ben Lessani]

You need to just be able to turn it through 90 degrees on both sides.

10mm deflection sounds about right.

[Daston]

cool thanks, just got to clean the head up now and get the gasket on and see how she runs.

[AudiA8Quattro]

The general rule for cam belts is you should be able to turn the belt 90 degrees with just finger and thumb pressure, on the longest part of the belt.

[Daston]

cool you learn something new everyday Most I have ever done to belts is change drive belts. Although my crank pulley did shatter once on my Supra a few years back.....to make it worse it was on the way to a resteraunt for my girlfriends 21st

[Daston]

Massive thanks to all you help! Fired it up today and it sounds great Solid idle at 800rpm and hardly and tapping at all. Slight puff of oily smoke from the exhaust though so will keep an eye on that.